ZyXEL Communications 2602HW Series 27.1 Internet Access Overview, 27.2 IP Policies, 27.3IP Alias

Prestige 2602HW Series User’s Guide

CHAPTER 27

Internet Access

This chapter shows you how to configure the LAN and WAN of your Prestige for Internet access.

27.1 Internet Access Overview

Refer to the chapters on the web configurator’s wizard, LAN and WAN screens for more background information on fields in the SMT screens covered in this chapter.

27.2 IP Policies

Traditionally, routing is based on the destination address only and the router takes the shortest path to forward a packet. IP Policy Routing (IPPR) provides a mechanism to override the default routing behavior and alter the packet forwarding based on the policy defined by the network administrator. Policy-based routing is applied to incoming packets on a per interface basis, prior to the normal routing. Create policies using SMT menu 25 (see Chapter 40 on page 391) and apply them on the Prestige LAN and/or WAN interfaces using menus 3.2 (LAN) and

11.3(WAN).

27.3IP Alias

IP alias allows you to partition a physical network into different logical networks over the same Ethernet interface. The Prestige supports three logical LAN interfaces via its single physical Ethernet interface with the Prestige itself as the gateway for each LAN network.

When you use IP alias, you can also configure firewall rules to control access between the LAN's logical networks (subnets).

Note: Make sure that the subnets of the logical networks do not overlap.

The following figure shows a LAN divided into subnets A, B, and C.

Chapter 27 Internet Access 289